/*
 * Emoji plugin for summernote [https://github.com/summernote/summernote]
 * Canonical - https://github.com/JustinEldracher/summernote-plugins
 */

odoo.define('muk_web_utils.summernote_ext_specialchars', function (require) {
'use strict';

//template
var tmpl = $.summernote.renderer.getTemplate();

// core functions: range, dom
var range = $.summernote.core.range;
var dom = $.summernote.core.dom;

var KEY = {
  UP: 38,
  DOWN: 40,
  LEFT: 37,
  RIGHT: 39,
  ENTER: 13
};
var COLUMN_LENGTH = 15;
var COLUMN_WIDTH = 35;

var currentColumn, currentRow, totalColumn, totalRow = 0;

// special characters data set
var specialCharDataSet = [
	"!",
	""",
	"#",
	"$",
	"%",
	"&",
	"'",
	"(",
	")",
	"*",
	"+",
	",",
	"-",
	".",
	"/",
	"0",
	"1",
	"2",
	"3",
	"4",
	"5",
	"6",
	"7",
	"8",
	"9",
	":",
	"&#59;",
	"<",
	"=",
	">",
	"?",
	"@",
	"A",
	"B",
	"C",
	"D",
	"E",
	"F",
	"G",
	"H",
	"I",
	"J",
	"K",
	"L",
	"M",
	"N",
	"O",
	"P",
	"Q",
	"R",
	"S",
	"T",
	"U",
	"V",
	"W",
	"X",
	"Y",
	"Z",
	"[",
	"\",
	"]",
	"^",
	"_",
	"`",
	"a",
	"b",
	"c",
	"d",
	"e",
	"f",
	"g",
	"h",
	"i",
	"j",
	"k",
	"l",
	"m",
	"n",
	"o",
	"p",
	"q",
	"r",
	"s",
	"t",
	"u",
	"v",
	"w",
	"x",
	"y",
	"z",
	"{",
	"|",
	"}",
	"~",
	"À",
	"Á",
	"Â",
	"Ã",
	"Ä",
	"Å",
	"Æ",
	"Ç",
	"È",
	"É",
	"Ê",
	"Ë",
	"Ì",
	"Í",
	"Î",
	"Ï",
	"Ð",
	"Ñ",
	"Ò",
	"Ó",
	"Ô",
	"Õ",
	"Ö",
	"Ø",
	"Ù",
	"Ú",
	"Û",
	"Ü",
	"Ý",
	"Þ",
	"ß",
	"à",
	"á",
	"â",
	"ã",
	"ä",
	"å",
	"æ",
	"ç",
	"è",
	"é",
	"ê",
	"ë",
	"ì",
	"í",
	"î",
	"ï",
	"ð",
	"ñ",
	"ò",
	"ó",
	"ô",
	"õ",
	"ö",
	"ø",
	"ù",
	"ú",
	"û",
	"ü",
	"ý",
	"þ",
	"ÿ",
	"¡",
	"¢",
	"£",
	"¤",
	"¥",
	"¦",
	"§",
	"¨",
	"©",
	"ª",
	"«",
	"¬",
	"®",
	"¯",
	"°",
	"±",
	"²",
	"³",
	"´",
	"µ",
	"¶",
	"¸",
	"¹",
	"º",
	"»",
	"¼",
	"½",
	"¾",
	"¿",
	"×",
	"÷",
	"∀",
	"∂",
	"∃",
	"∅",
	"∇",
	"∈",
	"∉",
	"∋",
	"∏",
	"∑",
	"−",
	"∗",
	"√",
	"∝",
	"∞",
	"∠",
	"∧",
	"∨",
	"∩",
	"∪",
	"∫",
	"∴",
	"∼",
	"≅",
	"≈",
	"≠",
	"≡",
	"≤",
	"≥",
	"⊂",
	"⊃",
	"⊄",
	"⊆",
	"⊇",
	"⊕",
	"⊗",
	"⊥",
	"⋅",
	"Α",
	"Β",
	"Γ",
	"Δ",
	"Ε",
	"Ζ",
	"Η",
	"Θ",
	"Ι",
	"Κ",
	"Λ",
	"Μ",
	"Ν",
	"Ξ",
	"Ο",
	"Π",
	"Ρ",
	"Σ",
	"Τ",
	"Υ",
	"Φ",
	"Χ",
	"Ψ",
	"Ω",
	"α",
	"β",
	"γ",
	"δ",
	"ε",
	"ζ",
	"η",
	"θ",
	"ι",
	"κ",
	"λ",
	"μ",
	"ν",
	"ξ",
	"ο",
	"π",
	"ρ",
	"ς",
	"σ",
	"τ",
	"υ",
	"φ",
	"χ",
	"ψ",
	"ω",
	"ϑ",
	"ϒ",
	"ϖ",
	"Œ",
	"œ",
	"Š",
	"š",
	"Ÿ",
	"ƒ",
	"ˆ",
	"˜",
	" ",
	" ",
	" ",
	"‌",
	"‍",
	"‎",
	"‏",
	"–",
	"—",
	"‘",
	"’",
	"‚",
	"“",
	"”",
	"„",
	"†",
	"‡",
	"•",
	"…",
	"‰",
	"′",
	"″",
	"‹",
	"›",
	"‾",
	"€",
	"™",
	"←",
	"↑",
	"→",
	"↓",
	"↔",
	"↵",
	"⌈",
	"⌉",
	"⌊",
	"⌋",
	"◊",
	"♠",
	"♣",
	"♥",
	"♦",
];

/**
 * @member plugin.specialChar
 * @private
 * @param {jQuery} $editable
 * @return {String}
 */
var getTextOnRange = function ($editable) {
  $editable.focus();

  var rng = range.create();

  // if range on anchor, expand range with anchor
  if (rng.isOnAnchor()) {
    var anchor = dom.ancestor(rng.sc, dom.isAnchor);
    rng = range.createFromNode(anchor);
  }

  return rng.toString();
};

/**
 * Make Special Characters Table
 *
 * @member plugin.specialChar
 * @private
 * @return {jQuery}
 */
var makeSpecialCharSetTable = function () {
  var $table = $("<div/>").attr("id", "specialCharTable");
	$.each(specialCharDataSet, function (idx, text) {
		var $block = $("<span/>").attr("style", "border:1px solid black;display:inline-block;height:50px;width:35px;text-align:center;font-size:14pt;color:black;padding-top:10px;cursor:pointer;")
			.addClass("note-specialchar-node char-" + idx).attr("title", text).attr("id", "char-" + idx);
		$block.append(text);
		$table.append($block);
	});

  return $table;
};

/**
 * Show Special Characters and set event handlers on dialog controls.
 *
 * @member plugin.specialChar
 * @private
 * @param {jQuery} $dialog
 * @param {jQuery} $dialog
 * @param {Object} text
 * @return {Promise}
 */
var showSpecialCharDialog = function ($editable, $dialog, text) {
  return $.Deferred(function (deferred) {
    var $specialCharDialog = $dialog.find('.note-specialchar-dialog');
    var $specialCharNode = $specialCharDialog.find('.note-specialchar-node');
    var $selectedNode = null;
    var ARROW_KEYS = [KEY.UP, KEY.DOWN, KEY.LEFT, KEY.RIGHT];
    var ENTER_KEY = KEY.ENTER;
	  var pos = 0;
	  var end = specialCharDataSet.length;

    function addActiveClass($target) {
      if (!$target) {
        return;
      }
      $target.find('span').addClass('active');
      $selectedNode = $target;
    }

    function removeActiveClass($target) {
      $target.find('span').removeClass('active');
      $selectedNode = null;
    }

    // find next node
    function findNextNode(row, column) {
      var findNode = null;
      $.each($specialCharNode, function (idx, $node) {
        var findRow = Math.ceil((idx + 1) / COLUMN_LENGTH);
        var findColumn = ((idx + 1) % COLUMN_LENGTH === 0) ? COLUMN_LENGTH : (idx + 1) % COLUMN_LENGTH;
        if (findRow === row && findColumn === column) {
          findNode = $node;
          return false;
        }
      });
      return $(findNode);
    }

    function arrowKeyHandler(keyCode) {
      // left, right, up, down key
      var w = $("#specialCharTable").css("width") + "";
		w = w.substr(0, w.length - 2);
		var cols = Math.floor(w / 35);
		pos = parseInt(pos);

      if (KEY.LEFT === keyCode) {
			if (pos > 0) {
				pos--;
				clear();
				$(".char-" + pos).css("border", "1px solid blue").css("background-color", "aliceblue");
				$selectedNode = $(".char-" + pos);
			}
      } else if (KEY.RIGHT === keyCode) {
			if (pos < end - 1) {
				pos++;
				clear();
				$(".char-" + pos).css("border", "1px solid blue").css("background-color", "aliceblue");
				$selectedNode = $(".char-" + pos);
			}
		} else if (KEY.UP === keyCode) {
			if (pos - cols >= 0) {
				clear();
				pos = pos - cols;
				$(".char-" + pos).css("border", "1px solid blue").css("background-color", "aliceblue");
				$selectedNode = $(".char-" + pos);
			}
		} else if (KEY.DOWN === keyCode) {
			if (pos + cols <= end) {
				clear();
				pos = pos + cols;
				$(".char-" + pos).css("border", "1px solid blue").css("background-color", "aliceblue");
				$selectedNode = $(".char-" + pos);
			}
		}
	  }

    function enterKeyHandler() {
      if (!$selectedNode) {
        return;
      }
		
		pos = 0;
      deferred.resolve(decodeURIComponent($selectedNode.attr("title")));
      $specialCharDialog.modal('hide');
    }

    function keyDownEventHandler(event) {
      event.preventDefault();
      var keyCode = event.keyCode;
      if (keyCode === undefined || keyCode === null) {
			return;
      }
      // check arrowKeys match
      if (ARROW_KEYS.indexOf(keyCode) > -1) {
			arrowKeyHandler(keyCode);
      } else if (keyCode === ENTER_KEY) {
			enterKeyHandler();
      }
      return false;
    }

    // remove class
    removeActiveClass($specialCharNode);
    // find selected node
    if (text) {
      for (var i = 0; i < $specialCharNode.length; i++) {
        var $checkNode = $($specialCharNode[i]);
        if ($checkNode.text() === text) {
          addActiveClass($checkNode);
          currentRow = Math.ceil((i + 1) / COLUMN_LENGTH);
          currentColumn = (i + 1) % COLUMN_LENGTH;
        }
      }
    }

    $specialCharDialog.one('shown.bs.modal', function () {
      $(document).on('keydown', keyDownEventHandler);
      $specialCharNode.on('click', function (event) {
        event.preventDefault();
		  pos = 0;
        deferred.resolve(decodeURIComponent(event.currentTarget.title));
        $specialCharDialog.modal('hide');
      });
		$specialCharNode.mouseenter(function() {
			clear();
			$(this).css("border", "1px solid blue").css("background-color", "aliceblue");
			$selectedNode = $(this);
			var thisid = $(this).attr("id") + "";
			pos = thisid.substr(5);
		});
		$specialCharNode.mouseleave(function() {
			clear();
		});
    }).one('hidden.bs.modal', function () {
      $specialCharNode.off('click');
      $(document).off('keydown', keyDownEventHandler);
      if (deferred.state() === 'pending') {
        deferred.reject();
      }
    }).modal('show');

    // tooltip
    /*$dialog.find('span').tooltip({
      container: $specialCharDialog.find('.form-group'),
      trigger: 'hover',
      placement: 'top'
    });*/

    // $editable blur
    $editable.blur();
	  
	  function clear() {
		  $specialCharNode.css("border", "1px solid black").css("background-color", "white");
		  $selectedNode = null;
	  }
  });
};

/**
 * @class plugin.specialChar
 *
 * Special Characters Plugin
 *
 * ### load script
 *
 * ```
 * < script src="plugin/summernote-ext-specialchar.js"></script >
 * ```
 *
 * ### use a plugin in toolbar
 * ```
 *    $("#editor").summernote({
 *    ...
 *    toolbar : [
 *        ['group', [ 'specialChar' ]]
 *    ]
 *    ...    
 *    });
 * ```
 */
$.summernote.addPlugin({
  /** @property {String} name name of plugin */
  name: 'specialChar',
  /**
   * @property {Object} buttons
   * @property {function(object): string} buttons.specialChar
   */
  buttons: {
    specialChar: function (lang, options) {
      return tmpl.iconButton(options.iconPrefix + 'circle-o ' + options.iconPrefix, {
        event: 'showSpecialCharDialog',
        title: lang.specialChar.specialChar,
        hide: true
      });
    }
  },

  /**
   * @property {Object} dialogs
   * @property {function(object, object): string} dialogs.specialChar
  */
  dialogs: {
    specialChar: function (lang) {
      var body = '<div class="form-group row-fluid">' +
                    makeSpecialCharSetTable()[0].outerHTML +
                 '</div>';
      return tmpl.dialog('note-specialchar-dialog', lang.specialChar.select, body);
    }
  },
  /**
   * @property {Object} events
   * @property {Function} events.showSpecialCharDialog
   */
  events: {
    showSpecialCharDialog: function (event, editor, layoutInfo) {
      var $dialog = layoutInfo.dialog(),
          $editable = layoutInfo.editable(),
          currentSpecialChar = getTextOnRange($editable);

      // save current range
      editor.saveRange($editable);

      showSpecialCharDialog($editable, $dialog, currentSpecialChar).then(function (selectChar) {
        // when ok button clicked

        // restore range
        editor.restoreRange($editable);
        
        // build node
        var $node = $('<span></span>').html(selectChar)[0];
		  //var $node = $(selectChar)[0];
        
        if ($node) {
          // insert character node
          editor.insertNode($editable, $node);
        }
      }).fail(function () {
        // when cancel button clicked
        editor.restoreRange($editable);
      });
    }
  },

  // define language
  langs: {
    'en-US': {
      specialChar: {
        specialChar: 'Special Characters',
        select: 'Select Special characters'
      }
    },
    'ko-KR': {
      specialChar: {
        specialChar: '특수문자',
        select: '특수문자를 선택하세요'
      }
    }
  }
});

});